Step 1

Combine the beef and marinade ingredients in a medium-size bowl. Marinate for 15 minutes white preparing other ingredients.

Step 2

Combine the sauce ingredients in a medium-size bowl and stir to mix well.

Step 3

Add the oil to a large skillet and heat over medium-high heat and heat until hot. Add the marinated beef and spread without overlapping. Cook undisturbed until the bottom turns golden brown, about 1 minute. Flip and brown the other side, another minute or so. Turn to low heat. Transfer the beef into a plate and set aside.

Step 4

Stir the sauce again to dissolve the cornstarch completely, pour into the pan. Turn to medium heat and bring the sauce to a boil. Stir and cook until the sauce is thickened.

Step 5

Turn off the heat and add the cooked beef back. Toss to coat evenly, then sprinkle with sesame seeds to garnish.

Step 6

Serve hot over steamed rice as a main dish.